docs: def edit(gandi, g):
      """Edit config file with prefered text editor"""
      config_file = gandi.home_config if g else gandi.local_config
      path = os.path.expanduser(config_file)
      editor = gandi.get('editor')
      if not editor:
          try:
              editor = click.prompt("Please enter the path of your prefered "
                                    "editor. eg: '/usr/bin/vi' or 'vi'")
          except Abort:
              gandi.echo("""
  Warning: editor is not configured.
  You can use both 'gandi config set [-g] editor <value>'
  or the $EDITOR environment variable to configure it.""")
              sys.exit(1)
  
      subprocess.call([editor, path])